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Old 01-06-2016, 12:30 PM   #31
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The 2 part spray foam comes in various densities, but most of the ones that would be appropriate for the trailer would mostly like weight between 1.75 - 2.5# per cubic foot fully expanded. So if someone knows the approximate average thickness the approximate total weight could be calculated fairly easily calculated

(Makes my skin crawl remembering spraying this stuff over my head in my attic )
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Old 01-06-2016, 12:56 PM   #32
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Bill
We do not have the foam insulation. As you indicated, it isn't very heavy. As hard working Municipal employees, my mechanic once emptied an entire can onto a piece of cardboard which he then carved into a turtle. It became the shop mascot and hung around the shop for years. Your tax dollar at work. It wasn't very heavy.
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Old 01-06-2016, 01:11 PM   #33
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Checking under our 21', I estimate the coverage at 3 inches times 5 feet times 15 feet.

75 s.f. times .25 f thickness, gives about 19 cubic feet.

Using the number given of about 2# per cubic feet, the estimate becomes about 38 pounds.

I guess only the spraying contractor knows for sure.

Bill
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Old 01-06-2016, 01:27 PM   #34
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Quote:
Originally Posted by Iowa Dave View Post
Bill
We do not have the foam insulation. As you indicated, it isn't very heavy. As hard working Municipal employees, my mechanic once emptied an entire can onto a piece of cardboard which he then carved into a turtle. It became the shop mascot and hung around the shop for years. Your tax dollar at work. It wasn't very heavy.
Dave
You should be so lucky! Our hard working Municipal employees only lean on shovels. There ain't a creative gene among the lot of 'em.
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Old 01-06-2016, 01:40 PM   #35
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Bill, nice job with the math! A long time ago I also heard the 200 lb figure stated, and that was by an employee. I asked Reace directly and was told that the foam insulation weighed about 40 lbs.
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Old 01-06-2016, 11:29 PM   #36
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As I mentioned before, the 200 pounds is unreasonable. The 80-pound value seemed roughly reasonable to me, but I was guessing a little more length and much more thickness than Bill (and using the same method), so I'm not surprised that the final answer is 40 pounds.
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Old 06-08-2016, 10:46 PM   #37
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As I mentioned before, the 200 pounds is unreasonable. The 80-pound value seemed roughly reasonable to me, but I was guessing a little more length and much more thickness than Bill (and using the same method), so I'm not surprised that the final answer is 40 pounds.
Glad to know it is around 40 lbs.

Awesome.

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